Future task suggestions

• [Java 21] Plan roadmap for upgrade to Java 21 (to be released end of September 2023)
• [Launcher] Support multiple java versions
• [Gestalt 8] Migrate to gestalt 8
  • Upgrade gestalt dependencies to 8.0.0-SNAPSHOT, nui-gestalt7 changes to nui-gestalt
  • Apply the gestalt-inject-java annotation processor to engine and all modules
  • Annotate all annotations searched for with findClassesWithAnnotation with the @Index annotation
  • Annotate all base classes searched for with findSubclasses with the @IndexInherited annotation
  • Replace all instances of org.terasology.gestalt.module.sandbox.API with org.terasology.context.annotation.API (this is the vast majority of changes)
• [Movement] Sprint/Crouch - see https://discord.com/channels/270264625419911192/270264625419911192/1189953049830109247
• [CI/Tooling] Elaborate workspace repo in #4035 (roadmap)
• [CI/Tooling] Elaborate CI setup improvements in #5136 (gap analysis, roadmap)
  • Fix compile errors
  • see BenjaminAmos@d252362
• [QA] configure PMD as mandatory in CI
• [QA] reduce log noise (#4991)
• investigate #5056
• investigate issues related to ctrl / shift / crouching / running / movement in general
  (#5224 #2565 #1075 #4300 #2833 #4993)

task suggestions:

• remove core registry in favor of context (e.g. #4508)
• continue subsystem extraction (see #4304)
• game initialization phases (see #2774 and various other engine issues)
• upgrade protobuf gradle plugin 0.8.16 -> 0.9.x (https://github.com/google/protobuf-gradle-plugin/releases) and compiler 3.17.0 -> 3.17.3